package com.qingcheng.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.qingcheng.dao.BrandMapper;
import com.qingcheng.entity.PageResult;
import com.qingcheng.pojo.goods.Brand;
import com.qingcheng.service.goods.BrandService;
import org.springframework.beans.factory.annotation.Autowired;
import tk.mybatis.mapper.entity.Example;

import java.util.List;
import java.util.Map;

@Service
public class BrandServiceImpl implements BrandService {

    @Autowired
   private BrandMapper brandMapper;

    /**
     * 查询所有
     * @return
     */
    @Override
    public List<Brand> findAll() {
        return brandMapper.selectAll();
    }

    /**
     * 分页查询
     * @param page
     * @param size
     * @return
     */
    @Override
    public PageResult<Brand> findPage(int page, int size) {
        PageHelper.startPage( page,size );
        Page<Brand> pageResut = (Page<Brand>) brandMapper.selectAll();
        return new PageResult<>(pageResut.getTotal(),pageResut.getResult());
    }

    /**
     * 条件查询
     * @param searchMap
     * @return
     */
    @Override
    public List<Brand> findList(Map<String, Object> searchMap) {

        Example example = createExample( searchMap );
        return  brandMapper.selectByExample( example );
    }

    /**
     * 条件加分页查询
     * @param searchMap
     * @param page
     * @param size
     * @return
     */
    @Override
    public PageResult<Brand> findPage(Map<String, Object> searchMap, int page, int size) {
        PageHelper.startPage( page,size );
        Example example = createExample( searchMap );
        Page<Brand> pageResut = (Page<Brand>) brandMapper.selectByExample( example );
        return new PageResult<>(pageResut.getTotal(),pageResut.getResult());

    }

    /**
     * 根据ID查询
     * @param id
     * @return
     */
    public Brand findById(Integer id){
        return brandMapper.selectByPrimaryKey( id );
    }

    @Override
    public void add(Brand brand) {
        brandMapper.insert( brand );
    }


    private Example createExample(Map<String, Object> searchMap) {

        Example example = new Example( Brand.class );
        Example.Criteria criteria = example.createCriteria();

        if (searchMap != null){
            if (searchMap.get( "name" )!=null && !"".equals( searchMap.get( "name" ) )){
                criteria.andLike( "name","%"+(String)searchMap.get( "name" )+"%" );
            }
            if (searchMap.get( "letter" )!=null && !"".equals( searchMap.get( "letter" ) )){
                criteria.andLike( "name","%"+(String)searchMap.get( "name" )+"%" );
            }
        }
        return example;

    }
}
